Q: What are the prime factors of the number 240,131,320?

 A: 2, 5, 11, 13, 41981

Why are those the prime factors of the number 240,131,320?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 240,131,320

240,131,320
Factor Arrows
2120,065,660
Factor Arrows
260,032,830
Factor Arrows
230,016,415
Factor Arrows
56,003,283
Factor Arrows
11545,753
Factor Arrows
1341,981

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 5, 11, 13, 41981

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 11 x 13 x 41,981 = 240,131,320

This can also be written as 23 x 51 x 111 x 131 x 41,9811 = 240,131,320

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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